Re: If only..
Not to mention the impossibility of sending High Definition TV over the air - "There would only be enough bandwidth for one HD channel".
And, who knows if they ever can get above 56kbps on a twisted pair copper wire, I hope they do.
Still, there is some truth to this, not least, the appalling 'improvements' to battery tech we have had in the last, say, 20yrs, not going too well at the minute.
I was of the opinion that they would pour the battery into every crevice, making the object (say a mobile phone) out of battery and a thin skin. This would simply mean that there was twice as much battery space used and twice as much charge stored.
Do that with a car using all those crevices and just maybe.
Mind you, every other car I see these days is very tall, this Tesla isn't. If it was, the storage would be twice as much (and the Hulk probably couldn't tip it over).
It would weigh more than an Abrams M1 tank and cost about the same presumably but, if they get that chemistry improved weight wise, some hope exists.
Remember, Petrol/Diesel fuel is extraordinary stuff but a fuel tank is only about 60 litres (on my car), The Tesla reviewed here has nearly 2000 litres of space as well as the battery it already contains (not including where the driver and passenger sit).
So, a lighter, cheaper battery with the same charge density *does* make a leccy car viable, especially the larger family sized SUV-pretender types - which, conveniently is a perfect demographic for buying them.